Brandwave

Left On Friday vs Monday Swimwear:Which is more popular?

In September 2026, Monday Swimwear had more branded searches than Left On Friday among swimwear brands worldwide. Monday Swimwear had about 90,500 branded searches, while Left On Friday had 33,100. Monday Swimwear made up 8.9% of all swimwear brand searches we track, and Left On Friday accounted for 3.3%. When we asked ChatGPT and Google AI Overviews about swimwear brands, Left On Friday and Monday Swimwear each appeared in three of the five answers. Monday Swimwear was mentioned before Left On Friday in three out of four answers.

Among swimwear brands worldwide in September 2026

Who do people search for more?

Monday Swimwear, about 3 searches for every 1 for Left On Friday

Monday Swimwear 90.5K searchesLeft On Friday 33.1K searches

Who does AI mention more?

Both were mentioned in 3 of 5 answers.

Left On Friday in 3 of 5Monday Swimwear in 3 of 5

Who does AI recommend more?

Monday Swimwear, named ahead of Left On Friday in 3 of 4 answers

Monday Swimwear first in 3Left On Friday first in 1

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Top swimwear brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Left On Friday was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. Monday Swimwear was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Monday Swimwear was listed before Left On Friday in three out of four answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Summersalt1st
  2. Monday Swimwear2nd
  3. Cupshe3rd
  4. Seafolly4th
  5. Left On Friday5th
  6. Eres6th
  7. Speedo7th
  8. Arena–
  9. Zoggs–
  10. Sunseeker–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Cupshe4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Summersalt4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Monday Swimwear3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Left On Friday3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Speedo2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Seafolly2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Eres2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Arena0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Zoggs0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Sunseeker0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about swimwear brands

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.

Is Left On Friday or Monday Swimwear more popular in search?

This chart shows how often people search Google for Left On Friday and Monday Swimwear by name. Each line represents a brand's share of searches for all ten swimwear brands we track, month by month, from English-language searches worldwide.

Left On Friday and Monday Swimwear among swimwear brands worldwide, by month

Share of searches by month for Monday Swimwear, Left On Friday. The figures are in the table below the chart.

View monthly share of searches table
MonthSpeedoCupsheMonday SwimwearSeafollyArenaSummersaltLeft On FridayZoggsSunseekerEres
Oct 202546.2%18.2%5.5%9.6%7.1%6.7%2%3.2%0.73%0.73%
Nov 202541.8%20.1%7.4%10.3%6.7%6.1%3.3%3.1%0.66%0.54%
Dec 202543.4%20.9%6.3%11.2%5.7%5.1%3.4%2.7%0.69%0.69%
Jan 202632%33.6%8.2%8.4%4.8%5.5%3.7%2.4%0.6%0.74%
Feb 202633.4%35%8.6%5.3%4.8%5.8%3.9%2%0.42%0.77%
Mar 202629.9%38.5%9.4%5.1%4.7%5.2%4.2%1.8%0.38%0.85%
Apr 202630.5%39.2%9.6%5%4.4%5.3%3.5%1.7%0.38%0.58%
May 202627.7%44.3%8.9%4.9%3.7%4%4%1.5%0.54%0.54%
Jun 202627.6%43.1%8.7%5.6%3.6%3.9%4.7%1.5%0.64%0.64%
Jul 202629.8%38.3%9.3%6.1%4.1%4.2%5.1%1.7%0.56%0.84%
Aug 202636.4%25.5%9.4%7.5%5.6%5.1%6.3%2.7%0.69%0.84%
Sep 202642.2%19.8%8.9%8.8%7.8%4.9%3.3%3%0.8%0.53%

How has the Left On Friday and Monday Swimwear comparison changed over the last 12 months?

3 findings

How did search popularity change for swimwear brands worldwide in September 2026?

3 changes

  1. In September 2026, Arena overtook Left On Friday to rank 5th among swimwear brands worldwide, with 7.8% of the searches.

  2. In September 2026, Left On Friday lost share of searches among swimwear brands worldwide, from 6.3% to 3.3%.

  3. Estimated monthly branded searches for Monday Swimwear worldwide rose 49.6% over 12 measured months, from 60.5K to 90.5K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Left On Friday’s and Monday Swimwear’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Left On Friday

1 branded search term

  • left on friday

Monday Swimwear

1 branded search term

  • monday swimwear

How the Brand Demand Index is measured

Other head-to-heads among swimwear brands

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